I base this solely on Redlines' claims, none of which is supported by results from ASTM (or other reliable venues, like API) tests: BS.

If one can't supply documentation of having passed ASTM or API specs, then yer stuff doesn't go into my engine. Frankly, all of Redline's specs are suspect, due to the amout of BS, IMHO.

This statement, in particular, is stunning:

"Red Line Motor Oils are designed to provide the highest degree of protection and cleanliness for your automotive, motorcycle, or marine engine. We
use the most stable synthetic components available and formulate our products for wear protection across a wide range of engine operating conditions.
Red Line lubricants are unique because they contain PE Polyol Ester base stocks, the only lubricants which can withstand the tremendous heat of modern
jet engines. This high-temperature stability makes our motor oil a necessity to properly lubricate a turbocharger or hot-running engine. The synthetic
base stocks have a natural multigrade property, which means that large amounts of unstable polymeric thickeners, like those used in petroleum oils, are
not required to manufacture our multigrades."

Give me a break!

Thanks, Rusty. Discerning minds can see BS for what it is. Next time, I'll save my money.

I don't use Red Line oil, but a number of my acquaintances whose opinion I value use it.

I have used their trans fluid with excellent results. Each time, the trans ran cooler.

The guy who rebuilt my 4WD transfer case is really sharp, and he recommended it.

I have had excellent results with their fuel system cleaner and water wetter. Their fuel system cleaner has been effective where Gumout was not. An auto parts store owner put me on it. He said that every customer who used it came back smiling. On one of my vehicles, it released so much crud from the fuel tank and lines that the filter on the carb inlet clogged and bypassed, causing a stuck open float valve. On my Barth, it made the Kohler generator run right for the first time ever.

On a previous MH, I clumb the same hill with and without Water Wetter. It was a while back, but IFIRC, the difference was 10 or 15 degrees over 50/50 water and antifreeze.

So, even without using their engine oil, I am a fan of their other products.

I don't use the water-wetter, as the huge radiator on my Breakaway rarely opens both thermostats anyway (8-mile, 6% climb in 98°F weather produced 205°F on the temp gage). However, I have friends that do, and from their reports, it's a primo product.

As far as fuel systems cleaners, I've not used Red Line, but IMHO, Chevron Techron is hard to beat.